//
//  UIViewController+Extension.m
//  demo
//
//  Created by mysj on 16/7/5.
//  Copyright © 2016年 MY. All rights reserved.
//

#import "UIViewController+Add.h"

@implementation UIViewController (Add)
/**
 *  16进制字符串转换UIColor
 */
- (UIColor *)hexStringToColor:(NSString *)stringToConvert {
    
    NSString *cString = [[stringToConvert stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] uppercaseString];
    
    if ([cString hasPrefix:@"#"]) cString = [cString substringFromIndex:1];
    if ([cString length] != 6) return [UIColor blackColor];
    
    NSRange range;
    range.location = 0;
    range.length = 2;
    NSString *rString = [cString substringWithRange:range];
    range.location = 2;
    NSString *gString = [cString substringWithRange:range];
    range.location = 4;
    NSString *bString = [cString substringWithRange:range];
    
    unsigned int r, g, b;
    
    [[NSScanner scannerWithString:rString] scanHexInt:&r];
    [[NSScanner scannerWithString:gString] scanHexInt:&g];
    [[NSScanner scannerWithString:bString] scanHexInt:&b];
    
    return [UIColor colorWithRed:((float) r / 255.0f)
                           green:((float) g / 255.0f)
                            blue:((float) b / 255.0f)
                           alpha:1.0f];
}

/**
 *  View 转换Imamge
 */
- (UIImage *)getImageFromView:(UIView *)theView {
    
    if([[UIScreen mainScreen] scale] == 2.0){
        UIGraphicsBeginImageContextWithOptions(theView.bounds.size, NO, 2.0);
    } else {
        UIGraphicsBeginImageContext(theView.frame.size);
    }
    
    CGContextRef context = UIGraphicsGetCurrentContext();
    //    CGContextSetFillColorWithColor(context, [UIColor whiteColor].CGColor);
    [theView.layer renderInContext:context];
    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return image;
}

@end
